BOM resets when model is Updated

Hello,

I created a BOM in 3DVIA composer 2013. It is comprised of assemblies  and individual parts.

Then I decide to update my 3D model because there is a design change that added a part to the model. I click File > update and then select my file.

For some reason, after its done updating, the BOM only shows the assemblies, and the part are gone from the BOM.

Any Ideas?

Thanks.